Arrangement of oil pumps



Jul'y a, 1923.- 1,46o,431

E. L. MLLER ARRANGEMENT 0F OIL PUMPS Filed Deo. 22. 1922 Patented July 3,1923.

YUNITED STATES EUGEN LUDWIG MLLER, or MUNICH, GERMANY.

Application led December 22, 1922. y Serial No. 608,538.

of an oil pump on .a driving or driven ina-- particularly to such pumps chine and more as are actuated bythe machine shaft on the same axis as the pump shaft.

Hit-herto the pumps used on such engines or other machines have been attached in such a manner that they were either fastened on to a bed plate alreadyfthere or to a special bed plate constructed for the purpose. This method of attaching is costly as the fitting of the bed plate surfaces must be very accurate and it requires a skilled Workman to erect the pump in order to assure accurate alignment between the machine shaft and the pump shaft.

The above disadvantages are overcome by the arrangement covered in this present invention. The pump-is so formed that it is fixed by a fia-nge at right kangles to the engine shaft and is which the driving shaft of the engine lies so that the pumpshaft and the machine shaft are coaxial. 4The connection between the pump shaft and the driving shaft may be a simple dog. By this arrangement errors assembling are practically impossible and the machining cost hitherto necessary is non-existant as the fitting of the surfaces by Which the pump shaft is attached to the engine shaft is a simultaneous operation to the fitting of the bearings for the machine shaft. I

The arrangement covered by the present invention has the further advantage that it provided with a centering a spigot in direct Contact With the bearing 1n gives a pleasing exterior appearance i far the ble. during the operation of thel pump straight into the bearing Ain which the machine and the pump shaft is not chine shaft or engine shaft rotates and can-- Parenteel-FICE..

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visi- The drops of oil which may overflow pass Ina-v not therefore make the surroundingso-f the pump `dirty as is hitherto usual in pumps mountedon engine bed plates.

A method of carrying' out the invention is shown by Way of example. in the 'drawings The pump casing 1 flange the pump shaft 2 and spigot 7 by which it is ing of the machine shaft 8. The p shaft 2 is adapted 'to engage by meansof' is provided With a 6 Which is placed at right-angles to also With a centering attached to the bearump its dog 4 with' a corresponding recess in the machine shaft 8.

I claim The combination of a said bearing. an oil ing fiange connected and having a surface gles to the said machine bearing, a machine shaft journalled in the bore ofthe pumpcasing, a .Worm shaft journalled in the? pump casing, a ,fix- With the pump casing extending at right an- Worm shaft and abutting on the said machine bearing, a pump driving Worm Wheel engaging withv thel centering member associated with an said Worm and enclosed in the pump casing, a

end

the said flange into the bore of the machine bearing,

EUGEN LUDWIG MLLE Witnesses ALEXANDER DoLrH, .l EMMAA SCHMITT.

andl a 'connecting'member at the end of the Worm shaft and projecting into a whereof I affix my signature 

